Raytheon claim it could be modified to match the maritime surveillance capability of the cancelled Nimrod MRA4, and the ground stations could be adapted to receive data from Watchkeeper, MQ-9 Reaper and the future Scavenger programme.

Raytheon claim it could be modified to match the maritime surveillance capability of the cancelled Nimrod MRA4, and the ground stations could be adapted to receive data from Watchkeeper, MQ-9 Reaper and the future Scavenger programme.

Raytheon claim it could be modified to match the maritime surveillance capability of the cancelled Nimrod MRA4, and the ground stations could be adapted to receive data from Watchkeeper, MQ-9 Reaper and the future Scavenger programme.

A contract for the development of a maritime capable software upgrade will be placed in the spring of 2015; Jane's speculates that this would allow the Sentinel to detect surface vessels and potentially submarine periscopes and that other sensors could be fitted as a 'low-end' capability for maritime surveillance to complement a 'high-end' platform such as the P-8A Poseidon.

In February 2012 it was announced that Sentinel would be offered as the UK contribution to NATO's Alliance Ground Surveillance (AGS) collaboration, complementing NATO RQ-4 Global Hawks and French Heron TPs.

In February 2012 it was announced that Sentinel would be offered as the UK contribution to NATO's Alliance Ground Surveillance (AGS) collaboration, complementing NATO RQ-4 Global Hawks and French Heron TPs.

DRDODefence Research and Development OrganizationDefence Research & Development Organization

The Ministry of Defence also created a joint committee with officials and scientists from the Defence Research and Development Organisation and Indian Air Force to facilitate the acquisition program and decide on mission equipment and software.

The Ministry of Defence also created a joint committee with officials and scientists from the Defence Research and Development Organisation and Indian Air Force to facilitate the acquisition program and decide on mission equipment and software.

In addition to Tornado and Rivet Joint, the Royal Air Force also deployed Reaper, Raytheon Sentinel, Beechcraft Shadow and Boeing Sentry AEW.1 aircraft to fly surveillance missions over Iraq and Syria.

The main aviation unit was No. 903 Expeditionary Air Wing which was responsible for the operation of the airfield and operated the Raytheon Sentinel R1 - Airborne Stand-Off Radar (ASTOR) along with Westland Sea Kings ASACs and Thales Watchkeepers.